Adjustable, 0.1% 50-ppm/°C precision micropower shunt voltage reference

The TL4051 series of shunt voltage

references are versatile easy-to-use references designed for a wide array of

applications. The device is available in a fixed 1.225V output or an adjustable

output whose voltage is determined by an external resistor divider. The device

requires no external capacitors for operation and is stable with all capacitive

loads. Additionally, the reference offers low dynamic impedance, low noise, and low

temperature coefficient to maintain a stable output voltage over a wide range of

operating currents and temperatures.

The TL4051 is offered in three initial

tolerances, ranging from 0.1% (max) for the A grade to 0.5% (max) for the C grade.

Thus, a great deal of flexibility is offered to designers in choosing the best

cost-to-performance ratio for any application. Packaged in the space-saving SOT-23-3

and SC-70 packages and requiring a minimum current of 45µA (typical), the TL4051

also is an excellent choice for portable applications.

The TL4051xI is characterized for

operation over an ambient temperature range of –40°C to 85°C. The TL4051xQ is

characterized for operation over an ambient temperature range of –40°C to 125°C.